Minger Construction's #custom build tunnel boring machine gets on with the tunneling under Bascom Hill, #Minnesota
https://news.wisc.edu/tunneling-under-bascom-hill/
#customMachinery
A huge, custom-made borer has started drilling a 640-foot-long tunnel under Bascom Hill to carry utilities. The borer, 11 feet in diameter, was lowered into a reinforced earthen pit between South Hall and the Law Building, where it runs on hydraulic...
cover tunnel photo by: Matt Brown from London, England / CC BY
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